After Edwin S. Porter's short-lived Defender Film Company failed, The Rex Motion Picture Company was established by Edwin S. Porter, Joseph Engel, and William Swanson.
[1] Rex, based at 573–579 11th Avenue, New York City.
[citation needed] Lois Weber established herself in the film industry at Rex.
Rex acquired Gem Motion Picture Company film properties and released them in 1912 under its own banner and later Universal's.
[citation needed] Rex was one of the studios that combined to form Universal Pictures under Carl Laemmle's leadership.